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PARR SAMUEL W

Overview
  • Total Patents
    12
About

PARR SAMUEL W has a total of 12 patent applications. Its first patent ever was published in 1900. It filed its patents most often in United States and Canada. Its main competitors in its focus markets measurement, materials and metallurgy and engines, pumps and turbines are YAMAZAKI ISAO, H2SCAN CORP and THERMOQUEST ITALIA SPA.

Patent filings in countries

World map showing PARR SAMUEL Ws patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 1

Patent filings per year

Chart showing PARR SAMUEL Ws patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Parr Samuel W 12
#2 Nelsen John H 1

Latest patents

Publication Filing date Title
US1714318A Internal-combustion engine
US1556953A Alloy
US1247998A Adiabatic calorimeter.
US1136361A Combustion device.
US1136360A Calorimeter.
US1136359A Calorimetric apparatus.
US1115239A Alloy.
US1115238A Calorimeter.
CA133748A Calorimeter
US947418A Calorimeter.
US700555A Process of determining the heating capacity of combustibles.
US673325A Apparatus for determining heating capacity of combustibles.